Hi Alan,
I think you may be on to something. Yes the 1090 dongle is certainly plugged in. I had assumed that the 1090 red status was due to there being no traffic around to detect because of lockdown. If the 1090 dongle was working OK but there was no traffic for it to detect, what status would you expect to see? Also, would it cause any harm to the dongle if I had powered it on with no antenna connected?
Today, I first tried the new Powercore 1300 battery pack, and with the old software (20190621) I saw the same behaviour. Usually "Volt=Warning" and sometimes "Volt=Error", and it would eventually go to green GPS status but would take several minutes. The 1090 satus was always red "Unavailable", as it has been throughout this testing.
After seeing your messgae, I tried unplugging the 1090 dongle, and then it got green GPS status much quicker, within about 1 minute, and always showed "Volt=OK". After verifying this a few times I tried going back to the new software (20201101), still with the 1090 dongle unplugged, and that also worked fine with GPS green within 1 minute and Volt=OK. Again I verified this a few times.
When I plugged the 1090 dongle back in, with the new software, the status was solid "Volt=Error" although it did manage to get green GPS status, which it didn't yesterday. I don't know why this is different from yesterday as I am back to the exact same configration, and I have tried it with both powercore battery packs.
Anyway it does look as if the 1090 dongle is causing extra current drain whch is giving me "Volt=Warning" with the old software and "Volt=Error" with the new software. I don't know if this is because the dongle is faulty or just that the whole system is too marginal. The best way to determine this would be to try a new 1090 dongle. Do you know how I can get a replacement for that?
Thanks,
Martin.